Liquid gas vaporizer



Feb. 13;.1934.

M. E. PAINTER LIQUID GAS VAPORIZER F iled Jui 6, 1931 v INVENTOR.

flour/Ce f. Pa/mer A TTORNE Y.

Patented Feb. 13, 1934 UNITED smrss ?ATENT I l,9d'i,4l99

LIQUID GAS VAPORIER Maurice E. dter, Dayton, 91110 Application .l'uly d,1931. Serial No. 548.8%!

by moons of which liquefied hydrocarbon gasesv are readily reconvertedto gaseous state.

A further object is to construct an apparatus for reconverting liquefiedhydrocarbon gases in which the pressure at which the liquid gas isintroduced and at which the reconverted gas is withdrawn can beaccurately controlled.

A further object is to construct an apparatus for reconverting liquefiedhydrocarbon gases which has a large exposed surface eree. whereby theaccumulation of frost thereon, due to temperature reduction during thereconverting process, is practically eliminated. Consequently, theapparatus can be used continuously over long periods of time, and theuse of artificial heat to assist such reconversion is unnecessary exceptin cases where the temperature around the recon-= verting unit is belowthat required-for gesiiics tion.

in the drawing:- F' i is a side elevation of device attached to s withparts broken away and in section. 2 is e fregmental view with perts insection oi the upper end of the spray pipe.

Fig. spray pipe.

4 is e. plan view of one of the deflectors "3 made use oi.

In carrying out my invention, e represents c. drum in which theliquefied gas is stored.- c is e. valve secured to the upper end of thefor the release at the contents. The valve 6 is provided with a pipe '2which extends into the drum 5 end terminates near the bottom of thedrum. The valve 6 is provided with the usual valve stem t for theettschment of a. wrench for opening and closing the valve. A conduit 9is ettechecl to the valve by means of e. shackle 10. The opposite end oithe conduit 9 is sttached to a pressure regulating velve ll. This valveis se cured to s boss 12 which is formed integral with the top 133.

The hose 12 is provided with a port it in which is screw threaded asleeve 15. The sleeve is provided at its upper end with a slot it toreceive u screw driver-blade so that the same can he insorted andremoved from the boss 12. The port 3 is 9. similar view of the lower endor? the i4 is preferably formed concentric with the hol low member 17.

Secured at one end in the sleeve 15 is e spec-v pipe 18. This spray pipeextends downwardly into the hollow member 17 and has its lower closedwith a plug 19. The spray pipe is provided with e plurality oflongitudinally spaced openings 20. These openings may he diametricallyop" posite each other or may he arranged in err; other suitable er.

Surrounding the spray pipe 18 ere deflectors L 21. These deflectors arepreferably located just below the openings 20 end. are inclined upwardslightly so as to deflect the spray and break it up into a mist. Thedeflectors 21 are preferably secured to the spray pipe 18 by slippingthem on the pipe and then bending them with 9. pair of pliers, thebending being illustrated in Fig. 3. This causes the deflectors totightly grip the pipe 18.

A bottom 22 closes the bottom end of the hollow member 17. This bottom22 is provided s passageway 28 which counicetes with the interior of a.hollow member 24 also carried by the bottom 22. The top 13 closes theupper end of the hollow member 24 and is provided with a boss 25 throughwhich a. port 26 is formed. The boss 25 carries a. pressure regulatingvalve 27 to which is etteched a pipe 28, this pipe leading to either theheating or lighting device Where the recon verted gas is to be used. I

Among the gases which may he reconverted by my method and apparatus aree murture of propane and butane, the mixture being prefer chly thirtyper cent oi. propane and seventy per cent of butane. These two gases areobtained in liquefied form at oil wells or refineries, and, upon beingmixed and brought into contact with the atmosphere or a. surface havinga tempercture as low as 40 F., gasify. The mixture of gases is placed inthe drum 5 under a pressure of from seventy to one hundred pounds, and,after the conduit 9 has been connected to the pressure regulating valve,the valve 6 is opened and the pressure regulating valve ll regulated sothat the liquefied gsses will enter the spray pipe 18 at a. pressure ofabout four pounds. As soon as the valve 6 is opened the pressure in thedrum is lowered and a portion of the liquefied gases in the drumcommences to turn to its gaseous state, and in so doing exerts pressureon the liquid and forces the'liquid in the a r .u. upwardly through thepipe '7, conduit 9, through the velve 1i, and into the spray pipe 18.

e liquid issues from the openings 20 in the form of a fine spray which,upon striking the upturned portions of the deflectors 21, is convertedinto a mist, and this mist coming in contact with the surface of thehollow member 17 exchanges heat therewith and is reconverted into a gassuitable for lighting and heating purposes.

The gas passes from the hollow member 17 through the passage 23 and intothe hollow member 24, from which it passes through the port 26, pressureregulating valve 27 where it is reduced to a relatively low pressure ofonly a few ounces, into the pipe 28, and then either to the heating orlighting unit.

My purpose of mounting the spray pipe 18 in a sleeve which is readilyremovable from the port it is that in the event large quantities of gasare desired this spray pipe may be removed and replaced by another spraypipe having more openings therein and also more deflectors. Thedeflectors are of such diameter that they will pass readily through theport 14 so that the change of spray pipes can be made by simply removingthe pressure regulating valve 11. It is understood, of, course, that thehollow members 1'1 and 2 2, which constitute the expander, are securedto the top 13 and bottom 22 in such a manner that leakage of gas willnot occur. This may be done either by welding, soldering, or other wellknown methods.

While I have mentioned propane and butane specifically as the gases tobe reconverted from a liquid to a gaseous state, I do not desire tolimit myself thereto as there are other gases which can be reconvertedfrom a. liquid to a gaseous state in the same manner.

I may also increase the surface area of the hollow members 17 and 24 bycorrugating the same and in this way increase the heat excging capacityof the expander without materially in intense creasing the size of theexpander. This form of construction is desirable where large quantitiesof gas are required, or where sudden increased demands for gas are made.

What I claimand desire to secure by Letters Patent is:

1. An apparatus for converting liquefied hydrocarbon gases comprising apair of hollow members, a base for said members, a passageway formed insaid base and communicating at its ends with the interior oi? saidhollow members, a top for said hollow members, an inlet port formed insaid top and communicating with the interior or one of said members, aspray pipe removably carried by said top, said spray pipe being incommunication with said inlet port, an outlet port formed in said topand communicatmg with the interior of the remaining hollow member, andpressure regulating means carried by said top for regulating thepressure of liquid entering into and gases passing from said hollowmembers.

2. an apparatus for converting liquefied hydrocarbon gases comprising apair of hollow members, means for closing opposite ends of the membersand for spacing said members to expose their circumferential area toatmospheric temperatures comprising a base having a passageway forproviding communication between said members and a top having an inletport in communication with one member and an outlet port communicatingwith the other member, a spray pipe mounted in the inlet port andextended into the respective hollow member, and pressure regulatingmeans for regulating the pressure or liquid entering the inlet port andthe pressure of gas passing iromthe outlet port.

' MAURICE E. PAINTER.

